LiquidPiston unveils 70cc rotary gasoline engine prototype embodying HEHC; power dense, low-vibration
Green Car Congress
NOVEMBER 19, 2014
The X Mini 70cc rotary gasoline engine. As the engine does not have poppet valves and the gas is fully expanded before the exhaust stroke starts, the engine also has potential to be quiet. Click to enlarge. The rotary engine architecture shows a potential indicated efficiency of 60% and brake efficiency of >50%. —Shkolnik et al.
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